IMO it's more to do with how nobody can afford to piss off the US so much.
Regarding your post, you're wrong about the MEP salaries:
Article 10 of the new Statute sets the amount of the MEPs salary as 38,5 % of the basic salary of a judge at the Court of Justice of the European Communities, thus currently €7,665 before tax.
http://www.europarl.europa.eu/sides/getDoc.do?pubRef=-//EP//...
Besides, I'm pretty sure the EP doesn't rule over the airspace of the member states.